Development of the On-Line Monitoring System for Farmland Soil Information

Based on the wireless sensor network technology, the paper designs an on-line monitoring system for farmland soil information. The system consists of two parts, namely, the wireless sensor network and the remote data managing center. Between them, the former mainly includes the micro controller chip STC89C52 and the wireless transceiver module APC220, and the latter running on the host computer is developed by Lab view. Moreover, the soil humidity can be on-line monitored successfully by the fuzzy algorithm in this system. The experimental results show that 6 sensors can construct network correctly in the interval distance of 200 meters, and the soil moisture can be controlled within the error range of 1.5%. The performance of the proposed system is tested, and it indicates that the system is reliable and effective.